Concrete pavement



2 Sheets-Shea?.l 1

wl, Etam/alimen Nov, 2 1926.

R. D. GREGG ET AL CONCRETE PAVEMENT Filed March'l, 1926 R. D. GREGG Er AL CONCRETE PAVEMENT Filed March 1, 19264 2 sheets-sheet 2 Patented Nov:A 2, I Y

UNITED?A s'rAras PATENT orFlc-E..

ROBERT D. GREGG nAND FRANK L. SHDLER, 0F KANKAKEE, ILLINOIS.

CONCRETE PAVEMENT.

Application area March 1, 192s. serial No. 91,411.

This invention relates to that class of con-A crete pavements in which the mass of concrete forming the pavement is separated at proper intervals by parting strips of suitable material, usually a compressible asphalt and fibre strip. Such parting strips are positioned on the bed of the road-way before the filling in of the vunset concrete mass is effected, with the strips remaining in place after the pavement is completed, and the.

Apresent improvement has for its object To provide a simple and efficient structural formation of a holdingmeans, wherewith parting strips of the y*nature above; described are effectively held in place upon the roadbed, duringthe application of the concrete mass to form the pavement, and by which a liability of such parting strips to rise out of place during the making of the pavement is avoided, all as will hereinafter more fully appear.

In the accompanying drawings:

Fig. l, is a detail longitudinal section, 'illustrating the preferred construction of the invention. l

Fig. 2, is a perspective view of the holding and bracing member of the preferred construction.

Fig. 3, is a perspective view of a portion of the fibre board generally used to form parting strips.

Figs. 4 and 5, are detail perspective views of modified forms of the holding and bracino' member.

Fig. 6, is a sectional elevation of another modified form of the invention.

- Fig. 7, is a detail perspective view of the same attached to a section of the parting stri Llke reference numerals indicate like parts in the several views.

The parting strips in-ge'neral use in the crete which forms a section or unit of thepavement. As heretofore used parting strips of the type described were Aliable to vertical displacement during the formation of the pavement and form an objectionable protuberance on the top surface of the completed pavement.

layin in sections, concrete pavements and With a view to an avoidance of the above mentioned difficulty this invention comprises broadly the fixed connection to the. lower portion of -a parting strip l, one or lmore lateral anchor places or extensions 2 adapted to rest upon the surface of the roadbed 4, and extending into the cavity, a Wall of which is formed by the parting strip 1, and into whichlcavity the mass 3 ofunset concrete is filled to form a. section or unit of a concrete pavement of the present type. With the described Aarrangement of the anchor plates 2 an initial portion of the con, crete filling 3 is placed in the portion adja cent to and upon the anchor plate, to more effectively hold the same down upon the roadbed against an accidental upward displacement of thev anchor plate and of the parting strip 1 to which it is secured.

The fixed connection of the anchor plate. 2 to the parting strip 1 may be attained by any usual connecting means, preferably by a fixed vertical flange 5 on said anchor plate 2, 'with such flange 5 provided with lateral prongs 6 adapted tobe forced into the side of the parting stri 1 to attain the required fixed attachment Eetween the parts, as illustrated in Figs. 1, 2, 4 and 5.'

The scope of this part of the invention however, embraces a pivotal attachment of the anchor plate 2 to a side of the parting strip by a pivotal and pronged connecting link 7"' as illustrated in. Figs. 6 and 7.

In the preferred construction shown in Figs. l, 2, 4, 6 and 7, the anchor late 2 is formed with a flat portion 2 exten ing in an oplposite direction to its main portion, with re ation to the parting strip 1, and with a view to attain a proper initial vertical position of the parting strip 1, before the same is secured in position by the usual bracin board Q and stakes 10.

Having thusully described our-inven tion, what we claim and desire to secure by Letters Patent, is

-1. In a sectional concrete pavement, the combination of a parting strip, and an anchor plate arranged beneath the lower edge ofthe parting. strip and projecting into the cavity of which the parting strip forms a wall', the anchor plate having an I integral vertical fiange formed with lateral prongs for imbedment in a vertical sidev of the parting strip to attainfixed connection between the parts.4

2. In a sectional concret-e pavement, the

combination of a ,parting strip, and an between the parts, and with a fiat portion anchor plate arranged beneath the lower extendin in an opposite direction beyond,` 10 ends of the parting strip and projecting the attached parting strip.V into the cavity of which the parting strip Signed at Kankakee, Illinois, this 24th forms a wall, the anchor plate having an day of February, 1926. y' integral vertical flange formed with lateral ROBT D. GREGG.

prongs for embedment in a vertical side of l l the parting strip to attain fixed connection FRANK L. SHIDLER;

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